Historically, the License Key was a string of alphanumeric characters (often formatted as five groups of five characters) that identified a specific purchase. It acted as a proof-of-purchase. In legacy versions of SketchUp (prior to the subscription pivot), this key was entered to register the software. It did not activate the software on its own; it merely initiated the process.

Go to the official SketchUp website ( https://www.sketchup.com/ ) and navigate to the "Plans" or "Pricing" section. Choose the plan that suits your needs (Web, Pro, or Studio).

Trimble provides an online lookup tool for classic licenses. Visit the official SketchUp License Manager website.

Open SketchUp and go to Help > Welcome to SketchUp > Licensing . Mac: Open SketchUp and go to SketchUp > License .

If you want to ensure your setup runs smoothly, please let me know: Are you getting a while activating?

: SketchUp provides a "Generate Report" service primarily for model attributes, but license status can be audited via the Trimble Account Management Portal for subscription users. Managing a Network License - SketchUp Help

: You can use the SketchUp License Manager to have your authorization code resent to the email address used during purchase. Understanding Serial Numbers & Authorization Codes

In modern versions, including SketchUp 2020, the License Key and Authorization Number have largely been replaced by user identity management. Users do not enter keys; instead, they input their email address associated with a Trimble ID, which authenticates against a cloud-based entitlement system.

If you have a Classic License but lost your credentials, you can retrieve them through the following official methods:

If you already have SketchUp 2020 running on an old computer and need to migrate it to a new machine, you can view your active serial number directly inside the app.

Trimble officially discontinued the sale of new Classic Perpetual Licenses in November 2020. Since then, the platform has transitioned to a cloud-based identity model.

SketchUp offers a free version known as SketchUp Free, which is a basic version that runs in your browser. It has limitations compared to the Pro version but can be sufficient for hobbyists or those with simple modeling needs.

If you already have SketchUp 2020 running on an old computer and want to migrate it, you can view your active serial number directly within the application: Click Help > Welcome to SketchUp > License . Mac: Click SketchUp > Welcome to SketchUp > License . How to Authorize SketchUp Pro 2020

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